interface Delivery {
    id?: number;
    price?: number;
    state?: number;
    remark?: number;
    order: string;
    user: string;
}

export class DeliveryModel implements Delivery {
    id?: number | undefined;
    price?: number | undefined;
    state?: number | undefined;
    remark?: number | undefined;
    order!: string;
    user!: string;
}